Jinx The Loose Cannon

Whenever a champion or tower that Jinx has dealt damage to within the last 3 seconds is killed or destroyed, she gains 175% movement speed that decays over 4 seconds.

Switcheroo!

Toggle off—Pow-Pow, the minigun: Jinx's basic attacks grant bonus attack speed for 2.5 seconds, stacking up to 3 times. The stacks decay one at a time when she stops attacking with her minigun.
Switching to her Rocket Launcher will not clear any active stacks, but they will not grant attack speed after her first attack.
Cooldown: 1 sec
Bonus Attack Speed: 16.6 / 23.3 / 30 / 36.6 / 43.3%
Total Bonus Attack Speed: 30/55/80/105/130%
Toggle on—Fishbones, the rocket launcher: Jinx gains bonus attack range and deals 10% AD bonus damage on her attacks, at the cost of mana per attack.
Additionally, her attacks will splash, dealing full damage to all nearby enemies. The bonus damage to her target and the splash damage both scale additively with critical strikes.
Bonus Range: 75 / 100 / 125 / 150 / 175

Active: Jinx tosses out 3 chompers that, once armed, explode on contact with enemy champions dealing magic damage over 1.5 seconds to nearby enemies. The champion that sets off the chomper is also rooted the same duration. Chompers explode automatically after 5 seconds. A single champion can only set off a single chomper, but can be damaged by any number if they remain in range.
Cost: 50 mana.
Cooldown: 24 / 22 / 20 / 18 / 16
Range: 900
Magic Damage: 100 / 150 / 200 / 250 / 300 (+1.0 per ability power)

Jinx train stop for No one

Item builds

Start items

Warding Totem (Trinket)

Limited to 1 Trinket.
Active: Consume a charge to place an invisible Stealth Ward which reveals the surrounding area for 60 - 120 seconds.
Stores one charge every 180 - 120 seconds, up to 2 maximum charges.
Ward duration and recharge time gradually improve with level.
(Limit 3 Stealth Wards on the map per player. Switching to a Lens type trinket will disable Trinket use for 120 seconds.)

Health Potion

Limited to 5 at one time.
Click to Consume: Restores 150 Health over 15 seconds.

First back 1125

First Goal

The Bloodthirster

+75 Attack Damage
UNIQUE Passive: +20% Life Steal
UNIQUE Passive: Your basic attacks can now overheal you. Excess life is stored as a shield that can block 50-350 damage, based on champion level.
This shield decays slowly if you haven't dealt or taken damage in the last 25 seconds.

Then Secound and third goal "

The secound goal

Choose One

Phantom Dancer

+45% Attack Speed
+30% Critical Strike Chance
UNIQUE Passive - Spectral Waltz: While within 500 units of an enemy champion you can see, +12% Movement Speed and you can move through units.
UNIQUE Passive - Lament: The last champion hit deals 12% less damage to you (ends after 10 seconds of not hitting).

+75 Attack Damage
UNIQUE Passive: +20% Life Steal
UNIQUE Passive: Your basic attacks can now overheal you. Excess life is stored as a shield that can block 50-350 damage, based on champion level.
This shield decays slowly if you haven't dealt or taken damage in the last 25 seconds.

This should be the buying order

The bloodthirster allows sustain in lane aganist those poke lanes eg: Lucian and Caitlyn. It also gives you are huge amount of damage in lane for poking and trades.
Berserker greaves excel the passive from the minigun.
The last whisper is to counter the early armour that can shut a jinx down such as a rushed sunfire.
The static or Phantom gives the crits you need for the mid game to start chunking people down in 1vs1 and Teamfights.
Next the defensive item also you to be more aggressive when pushing becuase you will not instantly die it also gives you more escapes from high cc teams or people such as leblanc who need the burst.
Your last item should be IE this completes your transition to late game because of the 250% crits.

Skillorder

Skill order

Getting q allows trading at level 1.
The e at level 2 means if you have a heavy ingage lane such as leona or thresh then if they land hook or stun you can easily stop them from moving or escaping thanks to chompers this can supply an easy first blood.